Accurate grinding device for surface of valve rod

Abstract

The utility model discloses a valve rod surface accurate grinding device which comprises a device body, a grinding wheel is rotatably connected between the inner walls of the device body, a transmission assembly is arranged in the device body and used for driving the grinding wheel to rotate, and a base is slidably connected between the inner walls of the device body. The telescopic electric cylinder drives the first positioning block to move on one side of the first connecting block, the valve rod abuts against the second positioning block on one side of the second connecting block, installation of the valve rod is completed, then the transmission assembly drives the grinding wheel to rotate between the inner walls of the device body, and meanwhile the displacement assembly drives the displacement plate to move on the top of the base. And chippings generated in the accurate grinding process are sucked into a dust suction box through a dust suction fan along a dust suction opening in the first time, and are collected and treated through a dust collection frame between the inner walls of a dust collection groove, so that the accurate grinding efficiency of the surface of the valve rod is improved, and the safety of the accurate grinding device is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve stem surface fine grinding technology, specifically a valve stem surface fine grinding device. Background Technology

[0002] The valve stem is an important component of a valve, typically used to control the flow of fluid. The valve stem is operated by a drive device (such as manual or automated equipment) connected to the valve, pushing the valve disc to open or close, thereby controlling the flow and pressure of the medium. Valve stem fine grinding is a process of precision machining of the valve stem, designed to improve its surface finish and dimensional accuracy to ensure the valve stem's sealing performance and wear resistance during operation.

[0003] A search revealed a Chinese patent for a valve stem surface fine grinding device, with authorization announcement number (CN221849554U). The device includes a fine grinding box with a cover plate at the top. A clamping plate is rotatably connected to the middle position of the upper inner side of the right plate of the fine grinding box. The right end of the clamping plate is connected to the output end of a motor. The output end of the motor is connected to the middle position of the right end of the clamping plate. The motor is fixed to the outside of the right plate of the fine grinding box.

[0004] This patented device, through the coordinated arrangement of a fine grinding box, cover plate, clamping plate, motor one, valve stem, top rod, moving frame, grinding block, hinge plate, groove, hinge rod, feed block, bidirectional screw, motor two, limit rod, water inlet pipe, water distribution pipe, nozzle, bearing plate, mesh plate, and water outlet, allows for the fine grinding of the valve stem surface via the grinding block, while simultaneously rinsing off falling debris via the spray nozzle. However, in actual use, some debris is stirred up during valve stem fine grinding, making it impossible to rinse off immediately and potentially causing harm to personal safety. This reduces the safety of the fine grinding device and the efficiency of valve stem surface fine grinding, making the device unsuitable for practical use. Utility Model Content

[0005] The purpose of this invention is to provide a valve stem surface fine grinding device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve stem surface fine grinding device, comprising a device body, a grinding wheel rotatably connected between the inner walls of the device body, a transmission assembly inside the device body for driving the grinding wheel to rotate, a base slidably connected between the inner walls of the device body, a displacement plate slidably connected to the top of the base, a displacement assembly on the top of the base for driving the displacement plate to move, a first connecting block and a second connecting block fixedly connected to the top of the displacement plate, a first positioning block slidably connected to one side of the first connecting block, a second positioning block fixedly connected to one side of the second connecting block, a dust suction port on one side of the device body, and a dust collection box fixedly connected to one side of the device body.

[0007] As a further preferred embodiment of this technical solution, the transmission component includes a mounting block and a fixing block, both of which are fixedly connected to the top of the inner side of the device body. A rotating shaft is rotatably connected between the mounting block and the fixing block, and a grinding wheel is fixedly connected to the outer side of the rotating shaft.

[0008] As a further preferred embodiment of this technical solution, a drive motor is fixedly mounted on one side of the mounting block, and the output end of the drive motor passes through the mounting block and is fixedly connected to the rotating shaft.

[0009] As a further preferred embodiment of this technical solution, the displacement assembly includes a displacement groove, which is formed on the top of the base. A displacement threaded rod is rotatably connected between the inner walls of the displacement groove, and a slider is threadedly connected to the outer side of the displacement threaded rod. The top of the slider is fixedly connected to the displacement plate.

[0010] As a further preferred embodiment of this technical solution, a displacement motor is fixedly installed on one side of the base, and the output end of the displacement motor extends into the interior of the displacement groove and is fixedly connected to the displacement threaded rod.

[0011] As a further preferred embodiment of this technical solution, a vacuum cleaner fan is fixedly installed between the top of the vacuum box and one side of the device body. The suction end of the vacuum cleaner fan is connected to the vacuum port, and the output end of the vacuum cleaner fan is connected to the interior of the vacuum box.

[0012] As a further preferred embodiment of this technical solution, a telescopic electric cylinder is fixedly installed on one side of the first connecting block, and the output end of the telescopic electric cylinder passes through the first connecting block and is fixedly connected to the first positioning block.

[0013] As a further preferred embodiment of this technical solution, a vertical plate is fixedly connected to the bottom of the inner side of the device body, a feed threaded rod is rotatably connected between one side of the vertical plate and the inner side of the device body, the outer side of the feed threaded rod is threadedly connected to the base, a turntable is rotatably connected to one side of the vertical plate, one end of the turntable passes through the vertical plate and is fixedly connected to the feed threaded rod, and a handle is fixedly connected to one side of the turntable.

[0014] As a further preferred embodiment of this technical solution, a dust collection groove is provided on one side of the dust collection box, and a dust collection frame is slidably connected between the inner walls of the dust collection groove.

[0015] This utility model provides a valve stem surface fine grinding device, which has the following beneficial effects:

[0016] (1) This utility model uses a telescopic electric cylinder to drive the first positioning block to move on one side of the first connecting block, so that the valve stem abuts against the second positioning block on one side of the second connecting block, thereby completing the installation of the valve stem. Then, the transmission component drives the grinding wheel to rotate between the inner walls of the device body, while the displacement component drives the displacement plate to move on the top of the base, thereby fine grinding the surface of the valve stem. The debris generated during the fine grinding process is immediately sucked into the dust collection box through the dust suction fan along the dust suction port, and collected and processed through the dust collection frame between the inner walls of the dust collection tank, thereby improving the efficiency of fine grinding of the valve stem surface and improving the safety of the fine grinding device.

[0017] (2) This utility model rotates the turntable by gripping the handle, so that the feed threaded rod rotates between the inner side of the vertical plate and the device body, thereby driving the base to move between the inner walls of the device body, which facilitates the loading and unloading of the valve stem and achieves the effect of accurately controlling the specifications of the valve stem surface grinding, thereby improving the accuracy and convenience of the valve stem surface grinding. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional half-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the dust collection box structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the displacement plate structure of this utility model;

[0023] In the diagram: 1. Device body; 2. Mounting block; 3. Fixing block; 4. Grinding wheel; 5. Drive motor; 6. Dust suction port; 7. Base; 8. Displacement motor; 9. Displacement plate; 10. First connecting block; 11. First positioning block; 12. Second connecting block; 13. Second positioning block; 14. Telescopic electric cylinder; 15. Vertical plate; 16. Turntable; 17. Handle; 18. Dust suction fan; 19. Dust collection box; 20. Dust collection frame; 21. Feed threaded rod; 22. Rotating shaft; 23. Dust collection groove; 24. Displacement groove; 25. Displacement threaded rod; 26. Slider. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] This utility model provides a technical solution: such as Figures 1-5 As shown, in this embodiment, a valve stem surface fine grinding device includes a device body 1. A grinding wheel 4 is rotatably connected between the inner walls of the device body 1. A transmission assembly is provided inside the device body 1 to drive the grinding wheel 4 to rotate. A base 7 is slidably connected between the inner walls of the device body 1. A displacement plate 9 is slidably connected to the top of the base 7. A displacement assembly is provided on the top of the base 7 to drive the displacement plate 9 to move. A first connecting block 10 and a second connecting block 12 are fixedly connected to the top of the displacement plate 9. A first positioning block 11 is slidably connected to one side of the first connecting block 10. A second positioning block 13 is fixedly connected to one side of the second connecting block 12. A dust suction port 6 is opened on one side inside the device body 1. A dust collection box 19 is fixedly connected to one side of the device body 1. The top of the dust collection box 19 is connected to one side of the device body 1. A vacuum cleaner fan 18 is fixedly installed. The suction end of the vacuum cleaner fan 18 is connected to the suction port 6, and the output end of the vacuum cleaner fan 18 is connected to the interior of the vacuum box 19. A telescopic electric cylinder 14 is fixedly installed on one side of the first connecting block 10. The output end of the telescopic electric cylinder 14 passes through the first connecting block 10 and is fixedly connected to the first positioning block 11. A vertical plate 15 is fixedly connected to the bottom of the inner side of the device body 1. A feed threaded rod 21 is rotatably connected between one side of the vertical plate 15 and the inner side of the device body 1. The outer side of the feed threaded rod 21 is threadedly connected to the base 7. A turntable 16 is rotatably connected to one side of the vertical plate 15. One end of the turntable 16 passes through the vertical plate 15 and is fixedly connected to the feed threaded rod 21. A handle 17 is fixedly connected to one side of the turntable 16. A dust collection groove 23 is opened on one side of the vacuum box 19. A dust collection frame 20 is slidably connected between the inner walls of the dust collection groove 23.

[0026] During the fine grinding of the valve stem surface, the telescopic electric cylinder 14 first moves the first positioning block 11 to one side of the first connecting block 10, causing the valve stem to abut against the second positioning block 13 on one side of the second connecting block 12, thereby completing the positioning and installation of the valve stem. Then, the transmission assembly drives the grinding wheel 4 to rotate between the inner walls of the device body 1. Subsequently, according to the actual fine grinding requirements of the valve stem, the handle 17 is manually rotated, causing the turntable 16 to drive the feed threaded rod 21 to rotate between the vertical plate 15 and the inner side of the device body 1, thereby driving the base 7 to move between the inner walls of the device body 1, so that the valve stem is close to the grinding wheel 4. Then, the displacement assembly drives the displacement plate 9 to move on the top of the base 7, thereby fine grinding the valve stem surface. The fine grinding debris is sucked into the dust collection box 19 through the dust collection fan 18 along the dust collection port 6, and finally collected and processed through the dust collection frame 20 between the inner walls of the dust collection groove 23, thereby completing the fine grinding of the valve stem surface according to the processing requirements, further improving the efficiency and safety of the valve stem surface fine grinding.

[0027] like Figures 1-5 As shown, the transmission assembly includes a mounting block 2 and a fixing block 3. Both the mounting block 2 and the fixing block 3 are fixedly connected to the top of the inner side of the device body 1. A rotating shaft 22 is rotatably connected between the mounting block 2 and the fixing block 3. A grinding wheel 4 is fixedly connected to the outer side of the rotating shaft 22. A transmission motor 5 is fixedly installed on one side of the mounting block 2. The output end of the transmission motor 5 passes through the mounting block 2 and is fixedly connected to the rotating shaft 22.

[0028] The drive motor 5 drives the rotating shaft 22 to rotate between the mounting block 2 and the fixed block 3, thereby driving the grinding wheel 4 to rotate between the inner walls of the device body 1, further improving the quality of the fine grinding of the valve stem surface.

[0029] like Figures 1-5 As shown, the displacement assembly includes a displacement groove 24, which is formed on the top of the base 7. A displacement threaded rod 25 is rotatably connected between the inner walls of the displacement groove 24. A slider 26 is threadedly connected to the outer side of the displacement threaded rod 25. The top of the slider 26 is fixedly connected to the displacement plate 9. A displacement motor 8 is fixedly installed on one side of the base 7. The output end of the displacement motor 8 extends into the interior of the displacement groove 24 and is fixedly connected to the displacement threaded rod 25.

[0030] The displacement motor 8 drives the displacement threaded rod 25 to rotate between the inner walls of the displacement groove 24, causing the slider 26 to move between the inner walls of the displacement groove 24, and at the same time driving the displacement plate 9 to move on the top of the base 7, thereby further improving the uniformity of the valve stem surface grinding.

[0031] This utility model provides a valve stem surface fine grinding device, the specific working principle of which is as follows: When fine grinding the valve stem surface, firstly, the telescopic electric cylinder 14 drives the first positioning block 11 to move on one side of the first connecting block 10, so that the valve stem abuts against the second positioning block 13 on one side of the second connecting block 12, thereby completing the positioning and installation of the valve stem. Then, the drive motor 5 drives the rotating shaft 22 to rotate between the mounting block 2 and the fixing block 3, thereby driving the grinding wheel 4 to rotate between the inner walls of the device body 1. Subsequently, according to the actual fine grinding requirements of the valve stem, the handle 17 is manually rotated, so that the turntable 16 drives the feed threaded rod 21 on the vertical plate 15. The valve stem rotates between the inner side of the device body 1 and the inner side of the device body 1, thereby driving the base 7 to move between the inner walls of the device body 1, so that the valve stem approaches the grinding wheel 4. Then, the displacement motor 8 drives the displacement threaded rod 25 to rotate between the inner walls of the displacement groove 24, so that the slider 26 moves between the inner walls of the displacement groove 24, and at the same time drives the displacement plate 9 to move on the top of the base 7, thereby fine grinding the surface of the valve stem. The fine grinding debris is sucked into the dust collection box 19 through the dust collection fan 18 along the dust collection port 6, and finally collected and processed through the dust collection frame 20 between the inner walls of the dust collection groove 23, thereby completing the fine grinding of the valve stem surface according to the processing requirements.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve stem surface fine grinding device, comprising a device body (1), characterized in that: A grinding wheel (4) is rotatably connected between the inner walls of the device body (1). A transmission assembly is provided inside the device body (1) to drive the grinding wheel (4) to rotate. A base (7) is slidably connected between the inner walls of the device body (1). A displacement plate (9) is slidably connected to the top of the base (7). A displacement assembly is provided on the top of the base (7) to drive the displacement plate (9) to move. A first connecting block (10) and a second connecting block (12) are fixedly connected to the top of the displacement plate (9). A first positioning block (11) is slidably connected to one side of the first connecting block (10). A second positioning block (13) is fixedly connected to one side of the second connecting block (12). A dust suction port (6) is opened on one side inside the device body (1). A dust collection box (19) is fixedly connected to one side of the device body (1).

2. The valve stem surface fine grinding device according to claim 1, characterized in that: The transmission assembly includes a mounting block (2) and a fixing block (3). The mounting block (2) and the fixing block (3) are both fixedly connected to the top of the inner side of the device body (1). A rotating shaft (22) is rotatably connected between the mounting block (2) and the fixing block (3). A grinding wheel (4) is fixedly connected to the outer side of the rotating shaft (22).

3. The valve stem surface fine grinding device according to claim 2, characterized in that: A drive motor (5) is fixedly installed on one side of the mounting block (2), and the output end of the drive motor (5) passes through the mounting block (2) and is fixedly connected to the rotating shaft (22).

4. The valve stem surface fine grinding device according to claim 1, characterized in that: The displacement assembly includes a displacement groove (24), which is opened on the top of the base (7). A displacement threaded rod (25) is rotatably connected between the inner walls of the displacement groove (24). A slider (26) is threadedly connected to the outer side of the displacement threaded rod (25). The top of the slider (26) is fixedly connected to the displacement plate (9).

5. The valve stem surface fine grinding device according to claim 4, characterized in that: A displacement motor (8) is fixedly installed on one side of the base (7), and the output end of the displacement motor (8) extends into the interior of the displacement groove (24) and is fixedly connected to the displacement threaded rod (25).

6. The valve stem surface fine grinding device according to claim 1, characterized in that: A vacuum cleaner fan (18) is fixedly installed between the top of the vacuum box (19) and one side of the device body (1). The suction end of the vacuum cleaner fan (18) is connected to the suction port (6), and the output end of the vacuum cleaner fan (18) is connected to the interior of the vacuum box (19).

7. The valve stem surface fine grinding device according to claim 1, characterized in that: A telescopic electric cylinder (14) is fixedly installed on one side of the first connecting block (10), and the output end of the telescopic electric cylinder (14) passes through the first connecting block (10) and is fixedly connected to the first positioning block (11).

8. The valve stem surface fine grinding device according to claim 1, characterized in that: A vertical plate (15) is fixedly connected to the bottom of the inner side of the device body (1). A feed threaded rod (21) is rotatably connected between one side of the vertical plate (15) and the inner side of the device body (1). The outer side of the feed threaded rod (21) is threadedly connected to the base (7). A turntable (16) is rotatably connected to one side of the vertical plate (15). One end of the turntable (16) passes through the vertical plate (15) and is fixedly connected to the feed threaded rod (21). A handle (17) is fixedly connected to one side of the turntable (16).

9. The valve stem surface fine grinding device according to claim 1, characterized in that: A dust collection trough (23) is provided on one side of the dust collection box (19), and a dust collection frame (20) is slidably connected between the inner walls of the dust collection trough (23).

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